I need the answer for c and d

PAST YEAR QUESTION Semester A191 - Q2B Danial Sdn Bhd (DSB) produces floor fan that passes through TWO (2) processing departments namely Assembly Department and Finishing Department. All direct materials are added at the beginning of the process in both departments. Meanwhile the conversion cost occurs uniformly throughout the production process. The following data is for the month of November 2019 for Finishing Department: Production Data Beginning work in process inventory 6,750 units Ending work in process inventory 8,250 units Percentage of completion (conversion cost): Beginning work in process inventory 60% Ending work in process inventory 70% Current production: Units started into production ? Units completed and transferred out 37,875 Units started and completed 31,125 Cost Data Costs of beginning work in process inventory. Transferred-in RM53, 100 Direct materials RM42,050 Conversion costs RM25,970 Cost in the current period: Transferred-in RM140,625 Direct materials RM82,500 Conversion costs RM57,750 REQUIRED: (a) Calculate units started into production. Calculate the equivalent units of production using the First In First Out (FIFO) method. (c) Explain how prior-period cost are treated under the FIFO method in calculating cost per equivalent unit. d) Explain how equivalent unit is calculated under the weighted-average method. 2